SE9103408D0 - PRESSURE DIFFERENCE INDICATOR - Google Patents
PRESSURE DIFFERENCE INDICATORInfo
- Publication number
- SE9103408D0 SE9103408D0 SE9103408A SE9103408A SE9103408D0 SE 9103408 D0 SE9103408 D0 SE 9103408D0 SE 9103408 A SE9103408 A SE 9103408A SE 9103408 A SE9103408 A SE 9103408A SE 9103408 D0 SE9103408 D0 SE 9103408D0
- Authority
- SE
- Sweden
- Prior art keywords
- bellows
- shaft
- pressure difference
- indicator
- difference indicator
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/2821—Pressure, vacuum level or airflow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/023—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using bellows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/10—Means for indicating or recording, e.g. for remote indication mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
A pressure difference indicator (10) for use in an appliance, for example a vacuum cleaner, comprises a shaft (14) and a bellows (16) provided around the shaft, in which a first end (17) of the bellows is fixed to the shaft and the second end (19) is slidable relative to the shaft. An indicator arm (21, 22) is provided for indicating the pressure difference between the spaces inside and outside of the bellows (16), which indicator arm is movable under the influence of the bellows. The shaft (14) is fixedly connected to a frame (15) of the appliance and the indicator arm (21) is connected to the second end (19) of the bellows. In one embodiment a biassing helical spring (23) is provided inside the bellows. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9002541A NL9002541A (en) | 1990-11-22 | 1990-11-22 | PRESSURE DIFFERENCE INDICATOR. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9103408D0 true SE9103408D0 (en) | 1991-11-18 |
SE9103408L SE9103408L (en) | 1992-05-23 |
Family
ID=19858013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9103408A SE9103408L (en) | 1990-11-22 | 1991-11-18 | PRESSURE DIFFERENCE INDICATOR |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPH0744000U (en) |
DE (1) | DE9113858U1 (en) |
FR (1) | FR2669733B3 (en) |
GB (1) | GB2250596A (en) |
NL (1) | NL9002541A (en) |
SE (1) | SE9103408L (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4237150A1 (en) * | 1992-11-04 | 1994-05-05 | Licentia Gmbh | vacuum cleaner |
DE4244141C2 (en) * | 1992-12-24 | 1996-06-13 | Aeg Hausgeraete Gmbh | Pressure indicator for vacuum cleaners |
DE9404125U1 (en) * | 1994-03-11 | 1994-05-26 | Hofer, Egbert Otto Dietrich, 87719 Mindelheim | Shaver with a suction device |
DE4413225A1 (en) * | 1994-04-15 | 1995-10-19 | Vorwerk Co Interholding | Vacuum cleaner with a suction power indicator |
AUPS255902A0 (en) | 2002-05-24 | 2002-06-13 | Ultimate Medical Pty. Ltd. | Device and method for pressure indication |
DE202005012922U1 (en) * | 2005-08-16 | 2006-01-19 | BSH Bosch und Siemens Hausgeräte GmbH | Fault indicator for vacuum cleaner |
EP2193738A1 (en) | 2008-12-04 | 2010-06-09 | Koninklijke Philips Electronics N.V. | Vacuum cleaner having a power indicator for determining a threshold value of the suction power |
EP2884151A1 (en) * | 2013-12-10 | 2015-06-17 | Linde Aktiengesellschaft | Device for indicating the loss of a vacuum |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB671956A (en) * | 1949-07-19 | 1952-05-14 | Pyrene Co Ltd | Improvements relating to pressure indicators for fire extinguishers |
DE3142746A1 (en) * | 1981-10-28 | 1983-05-05 | Siemens AG, 1000 Berlin und 8000 München | GAS DENSITY INDICATOR |
-
1990
- 1990-11-22 NL NL9002541A patent/NL9002541A/en not_active Application Discontinuation
-
1991
- 1991-11-07 DE DE9113858U patent/DE9113858U1/en not_active Expired - Lifetime
- 1991-11-18 GB GB9124479A patent/GB2250596A/en not_active Withdrawn
- 1991-11-18 SE SE9103408A patent/SE9103408L/en not_active Application Discontinuation
- 1991-11-19 JP JP9479391U patent/JPH0744000U/en active Pending
- 1991-11-22 FR FR9114425A patent/FR2669733B3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB9124479D0 (en) | 1992-01-08 |
NL9002541A (en) | 1992-06-16 |
FR2669733A3 (en) | 1992-05-29 |
DE9113858U1 (en) | 1992-02-13 |
FR2669733B3 (en) | 1992-09-25 |
JPH0744000U (en) | 1995-10-24 |
GB2250596A (en) | 1992-06-10 |
SE9103408L (en) | 1992-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9103408-2 Effective date: 19931105 |